Hale, W. G & Grierson, J / February 1956 – vol. 49, issue 2–86 Displacement coition in the Mallard.--On ioth May, 1951, a t Clayton-le-dale, near Blackburn, Lancashire, I was engaged in watching the behaviour of a pair of Mallard (Anas platyrhynchos) tending fifteen young, which were newly hatched. T h e young fed for the most part within a radius of three yards of the female Mallard, but occasionally one strayed further afield. Immediately this happened, the... This article is only available to registered users.To read more, please log in or purchase a subscription.